I want to use this conrol in gridview. so can you make this a proper dropdown and add to gridview control and let me know. I want to save the client with their multiple categories in gridview. I have 1000s of clients in gridview so need your help. Can you update your code according to this and let me know. You help will be immensely helpful. Its Urgent.

This is not a "project" it's a simple list box with checkboxes.
It gives the ASP.net developer a different way to multi select values that's all.
It's very easy to use and plug it in your ASP.net apps.